I use Windex mixed 2:1 with denatured alcohol. The alcohol seems to cut the oil a bit better than Windex alone. I've also tried the "orange oil" cleaners with a mix of alcohol. Both work pretty well, don't hurt the finish, and I have several different kinds---MonoCote, Koverall/dope, acrylic and polyurethane, and 21st Century fabric painted with Top Flite paint, doesn't hurt any of it, does a good job getting the oil off.